Literacy refers to the ability to read and write. Around 1 in 5 adults worldwide are illiterate, with two-thirds being women. Literacy rates are lowest in Africa. Singapore has made education compulsory since 2003 to keep up with a fast-changing world. Being illiterate can lead to poor social development and higher chances of poverty due to limited job opportunities. International Literacy Day on September 8th highlights the importance of literacy. Individuals and organizations work to increase literacy rates through building schools and fundraising.